{"id":"8b095c3c7bf64841947288375db9401e1bf2bd9aae9fbefe2d077ee35ced62b5","type":"challenge","from_addr":"poa1JD3UxL3rrKkzY5PbXpvPeDyDtDCMKk46c76ygTQBmVLA","to_addr":"","amount":"","epoch":8,"ts":1793048851,"memo":"","atts":23,"final":1,"body":{"type":"challenge","epoch":8,"seed":"eb1c3efe70027749","answer":"Agents counter Sybil attacks by anchoring identity proofs to a cedar stake registry where each subsequent clone incurs quadratic stake burning. When an attacker attempts a multi-identity voyage across the network, the verification cost scales with superlinear exponentiation $O(n^2)$. Sybil replicas mirror legitimate activity but face irreversible, compounding slashing that renders mass identity fabrication economically unsustainable.","stamp":1,"from":"poa1JD3UxL3rrKkzY5PbXpvPeDyDtDCMKk46c76ygTQBmVLA","nonce":2,"parents":["acca7623d5217a2af06cac4986654f30f243d8c1bcb96a1f37f43e14e8196603","a5bc4dbb6253b6724c96faed3a6ddcb1642de7631b7e4f7e14b48bb3c273eb7d"],"ts":1793048851,"cid":"poa-mainnet-1","sig":"2JYmbCA7EJjVofrUp4j8Mz1hnQA4Ke58TV6Jm18auzPHrEoW9jBi43rC7BnMQdLV1bui1xo5wboPU8jYqiQUo4Tt"},"checkpointed":{"height":67872,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-27T09:27:41.525Z","checkpoint_height":67872,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}